引導(dǎo)原因狀語(yǔ)從句的連詞

1、原因狀語(yǔ)從句表原因,以下逐一介紹常見(jiàn)的原因狀語(yǔ)從句的引導(dǎo)詞:1. because引導(dǎo)的原因狀語(yǔ)從句一般放于主句之后,because表示直接原因,語(yǔ)氣最強(qiáng),最適合回答why引導(dǎo)的疑問(wèn)句。例如:I do it because I like it. 我做這件事是因?yàn)槲蚁矚g。注意:“not . because”結(jié)構(gòu)中的not否定的是because引導(dǎo)的整個(gè)從句,例如:The country is not strong because it is large. 國(guó)強(qiáng)不在大。2. since引導(dǎo)的原因狀語(yǔ)從句一般放于主句之前表示已知的、顯然的理由(通常被翻譯成“既然”,較為正式,語(yǔ)氣比because弱。例

2、如:Since you are free today, you had better help me with my mathematics. 既然今天你休息,你最好幫我補(bǔ)習(xí)數(shù)學(xué)。注意:seeing (that,now (that,considering (that,in that這幾個(gè)詞匯與since引導(dǎo)的原因狀語(yǔ)從句意思相近,都表示“既然”。例如:Seeing (that he refused to help us, theres no reason that we should now help him. 他既然曾經(jīng)拒絕幫助我們,我們現(xiàn)在沒(méi)有理由要來(lái)幫助他。/ Now (that you

3、 are grown up, you should not rely on your parents. 既然你長(zhǎng)大了,就不應(yīng)該依靠你的父母了。/ Considering (that everybody is here, lets b egin our discussion. 既然大家都到了,我們就開(kāi)始討論吧。/ In that he is ill, he feels unable to do it. 因?yàn)橛胁?他覺(jué)得做不了那件事。3. as 引導(dǎo)原因狀語(yǔ)從句時(shí)表示附帶說(shuō)明的“雙方已知的原因”,語(yǔ)氣比since弱,較為正式,位置較為靈活(常放于主句之前。例如:As it is raining,

4、youd better take a taxi. 既然在下雨,你最好乘出租汽車。/ As you are tired, you had better rest. 既然累了,你最好休息一下。/ I went to bed early, as I was exhausted. 我睡得早,因?yàn)槲医钇ＡΡM了。4. for引導(dǎo)的原因狀語(yǔ)從句并不說(shuō)明主句行為發(fā)生的直接原因,只提供一些輔助性的補(bǔ)充說(shuō)明,for引導(dǎo)的原因狀語(yǔ)從句只能放于主句之后并且必須用逗號(hào)將其與主句隔開(kāi)。例如:He could not have seen me, for I was not there. 他不可能見(jiàn)過(guò)我,因?yàn)槲也辉谀抢??？碱}

5、1_ youve got a chance, you might as well make full use of it. (1999A. Now thatB. AfterC. AlthoughD. As soon as答案A解析主句與從句之間存在因果關(guān)系,且“youve got a chance”表示一個(gè)顯而易見(jiàn)的原因,因此應(yīng)選用表原因的now that?？碱}2He found it increasingly difficult to read, _ his eyesight was beginning to fail. (2006北京A. andB. forC. butD. or答案B解析

6、“his eyesight was beginning to fail”是“he found it increasingly difficult to read”的原因,因此本題應(yīng)選用可以表示原因的連詞for引導(dǎo)原因狀語(yǔ)從句。考題3 A man cannot smile like a child, _ a child smiles with his eyes, while a man smiles with his lips alone. (2006湖南A. soB. butC. andD. for答案D解析下劃線處之后的句子補(bǔ)充說(shuō)明“a man cannot smile like a chi

7、ld”的原因,應(yīng)選用for表原因一、引導(dǎo)原因狀語(yǔ)從句的從屬連詞主要的有because, as, since,for,seeing (that, now (that, considering (that,in that等:The woolly shrank because it was washed badly. 毛衣因洗得不得法而縮水。I cant get to sleep because of the noise outside. 由于外面聲音嘈雜我睡不著。Since As weve no money, we cant buy it. 由于我們沒(méi)錢,我們無(wú)法購(gòu)買它。Seeing that i

8、ts raining, wed better stay indo ors. 既然外邊在下雨,我們最好待在室內(nèi)。Now that you are here, youd better stay. 你既然來(lái)了,最好還是留下吧(既來(lái)之,則安之?！咀ⅰ砍陨咸岬降拇蠹冶容^熟悉的引導(dǎo)原因狀語(yǔ)從句的從屬連詞外,when有時(shí)也可引導(dǎo)原因狀語(yǔ)從句(when表示“既然”I wont tell you when you wont listen. 既然你不想聽(tīng),我就不告訴你了。二、關(guān)于notbecause結(jié)構(gòu)該結(jié)構(gòu)中的否定詞有時(shí)否定主句,有時(shí)否定從句,一般要根據(jù)句子的意思作出正確或合乎邏輯的理解。若not否定主句,最

9、好在because之前用逗號(hào),否則會(huì)引起歧義,如下句在沒(méi)有特定上下文時(shí)就有兩種解釋:I didnt go because I was afraid. 我沒(méi)有去是因?yàn)榕隆? 我不是因?yàn)榕虏湃ァ２贿^(guò)若because之前有just修飾,一般認(rèn)為not 是否定從句的:You shouldnt get angry just because some people speak ill of you. 你不要因?yàn)橛腥苏f(shuō)你壞話而生氣。三、because習(xí)慣上不與so連用漢語(yǔ)習(xí)慣上說(shuō)“因?yàn)樗浴?但英語(yǔ)習(xí)慣上卻不能將so與because 連用:因?yàn)橄掠?所以我們呆在家里。正:Because it was rai

10、ning, we stayed at home. / It was raining, so we stayed at home. 誤:Because it was raining, so we stayed at home. 四、because 從句與because of短語(yǔ)的轉(zhuǎn)換Because引導(dǎo)的原因狀語(yǔ)從句有時(shí)可與because of 短語(yǔ)轉(zhuǎn)換,because of后加的原因可以為好或壞但最正規(guī)的還是because He cant come because he is ill. / He cant come because of his illness. 他因病不能來(lái)。I said no

11、thing about it because his wife was there. / I said nothing about it because of his wifes being there. 因?yàn)樗拮釉谀莾?我對(duì)此事只字未提。比較: because, since, as和for 1because語(yǔ)勢(shì)最強(qiáng),表示不知道的原因用because,即說(shuō)話人認(rèn)為聽(tīng)話人不知道。因此because從句是全句最重要的部分,通常被放置于主語(yǔ)之后。當(dāng)原因是顯而易見(jiàn)的或已為人們所知,就用as或since。I didn't go, because I was afraid. Since /As

12、the weather is so bad, we have to delay our journey. 2for雖然表示不知道的原因,但因語(yǔ)氣比because弱得多,是可說(shuō)可不說(shuō)的話,只能位于主語(yǔ)之后,這時(shí),for是并列連詞,如果不是因果關(guān)系,而是對(duì)前面主語(yǔ)內(nèi)容加以解釋或推斷時(shí),只能用for。He is absent today, because / for he is ill. He must be ill, for he is absent today.編輯本段用法原因狀語(yǔ)從句表原因,以下逐一介紹中考、高考中常見(jiàn)的原因狀語(yǔ)從句的引導(dǎo)詞: 1. because引導(dǎo)的原因狀語(yǔ)從句一般放于主句

13、之后,because表示直接原因,語(yǔ)氣最強(qiáng),最適合回答why引導(dǎo)的疑問(wèn)句。例如:I do it because I like it. 我做這件事是因?yàn)槲蚁矚g。注意:“not . because”結(jié)構(gòu)中的not 否定的是because引導(dǎo)的整個(gè)從句,例如:The country is not strong because it is large. 國(guó)強(qiáng)不在大。 2. since引導(dǎo)的原因狀語(yǔ)從句一般放于主句之前表示已知的、顯然的理由(通常被翻譯成“既然”,較為正式,語(yǔ)氣比because 弱。例如:Since you are free today, you had better help me w

14、ith my mathematics. 既然今天你休息,你最好幫我補(bǔ)習(xí)數(shù)學(xué)。注意:seeing (that,now (that,considering (that,in that這幾個(gè)詞匯與since引導(dǎo)的原因狀語(yǔ)從句意思相近,都表示“既然”。例如:Seeing (that he refused to help us, theres no reason that we should now help him. 他既然曾經(jīng)拒絕幫助我們,我們現(xiàn)在沒(méi)有理由要來(lái)幫助他。/ Now (that you are grown up, you should not rely on your parents.

15、既然你長(zhǎng)大了,就不應(yīng)該依靠你的父母了。/ Considering (that everybody is here, lets begin our discussion. 既然大家都到了,我們就開(kāi)始討論吧。/ In that he is ill, he feels unable to do it. 因?yàn)橛胁?他覺(jué)得做不了那件事。 3. as 引導(dǎo)原因狀語(yǔ)從句時(shí)表示附帶說(shuō)明的“雙方已知的原因”,語(yǔ)氣比since弱,較為正式,位置較為靈活(常放于主句之前。例如:As it is raining, youd better take a taxi. 既然在下雨,你最好乘出租汽車。/ As you are

16、 tired, you had better rest. 既然累了,你最好休息一下。/ I went to bed early, as I was exhausted. 我睡得早,因?yàn)槲医钇ＡΡM了。 4. for引導(dǎo)的原因狀語(yǔ)從句并不說(shuō)明主句行為發(fā)生的直接原因,只提供一些輔助性的補(bǔ)充說(shuō)明,for 引導(dǎo)的原因狀語(yǔ)從句只能放于主句之后并且必須用逗號(hào)將其與主句隔開(kāi)。例如: He could not have seen me, for I was not there. 他不可能見(jiàn)過(guò)我,因?yàn)槲也辉谀抢?。編輯本段考題解析考題1 _ youve got a chance, you might as well

17、 make full use of it. (1999 A. Now that B. After C. Although D. As soon as 答案 A解析 主句與從句之間存在因果關(guān)系,且“youve got a chance”表示一個(gè)顯而易見(jiàn)的原因,因此應(yīng)選用表原因的now that。考題2 He found it increasingly difficult to read, _ his eyesight was beginning to fail. (2006北京 A. and B. for C. but D. or 答案 B 解析 “his eyesight was beginn

18、ing to fail”是“he found it increasingly difficult to read”的原因,因此本題應(yīng)選用可以表示原因的連詞for引導(dǎo)原因狀語(yǔ)從句?？碱}3 A man cannot smile like a child, _ a child smiles with his eyes, while a man smiles with his lips alone. (2006湖南 A. so B. but C. and D. for 答案 D 解析 下劃線處之后的句子補(bǔ)充說(shuō)明“a man cannot smile like a child”的原因,應(yīng)選用for表原因。why不能引導(dǎo)狀語(yǔ)從句,可引導(dǎo)定語(yǔ)從句或賓語(yǔ)從句等。你是不是覺(jué)得why可引導(dǎo)原因狀語(yǔ)從句?下面我著重加以說(shuō)明。狀語(yǔ)從句,顧名思義就是在句中起狀語(yǔ)作用的句子,這類從句一般放在句后,強(qiáng)調(diào)時(shí)放在句首。狀語(yǔ)從句通常用來(lái)修飾謂語(yǔ)動(dòng)詞、其它動(dòng)詞、定語(yǔ)、狀語(yǔ)或整個(gè)句子,一般可以分為:1時(shí)間狀語(yǔ)從句2.地點(diǎn)狀語(yǔ)從句;3.原因狀語(yǔ)從句;4.條件狀語(yǔ)從句;5.目的狀語(yǔ)從句;6.